Hidden Risks in the Use of Digital Certificates

Since the adoption of the European eIDAS regulation in 2014, concerning electronic identification and trust services for electronic transactions, the landscape of digital certificates and electronic signatures has undergone a revolution. This harmonized and robust regulatory framework has facilitated secure cross-border electronic transactions within the EU, increasing confidence in these operations.

The need to conduct intercompany transactions and procedures with public administrations that require electronic document signing or authentication has made digital certificates a key tool. Since 2021, the number of transactions and digital certificates managed by organizations has increased by 30%, reflecting the growing adoption of this technology.

However, this increase brings with it certain risks and vulnerabilities that must be addressed to ensure its effectiveness and protect sensitive information. This is where Qualified Trust Service Providers play a crucial role, guaranteeing the security of digital certificate issuance and custody.

Challenges in Digital Certificate Management

Proper management of digital certificates in organizations can be a significant challenge. This is due to the need to use them from various locations and devices, which often results in certificate migration without deleting previous copies.

Locating and managing specific certificates within a large inventory can be complicated without effective digital asset management tools. Furthermore, tracking the usage and activities associated with each certificate (e.g., authentication and digital signatures) can require costly auditing and monitoring systems.

Organizations with large volumes of certificates face additional challenges related to scalability and certificate lifecycle management (issuance, renewal, revocation). Properly managing these processes is crucial to ensure security and prevent service disruptions.

The large number of certificates increases the attack surface and the possibility of security compromises, especially if adequate controls are not implemented.

Some organizations, aware of these challenges, resort to basic methods for storing certificates on shared devices, supplementing them with security and access control tools. However, this only provides a false sense of security. On the other hand, some companies opt for centralized certificate solutions, which ensures proper management.

The risks arising from poor certificate management fall under the category of “cyber compliance,” specifically within regulations that establish security requirements related to identity, data accuracy, and technical and organizational control measures. The General Data Protection Regulation ( GDPR) , for example, stipulates that technical and organizational measures must be adequate, ensuring the accuracy of information and the traceability of compliance based on the principle of proactive responsibility.

Depending on the sector and the activity of the entity, proper control of certificates is essential, especially if they apply standards such as NIS 2 or DORA and standards such as the National Security Scheme (ENS) or ISO 27001 .

Main Risks and Vulnerabilities of Digital Certificates

1. Identity Theft: Digital signatures can be vulnerable to identity theft attempts, where an attacker impersonates the legitimate signatory. This risk can compromise the authenticity and integrity of digitally signed documents.
2. Key Theft: Cryptographic keys used in digital signatures are an attractive target for cybercriminals. Stealing these keys can allow an attacker to sign documents on behalf of the legitimate owner, thus compromising information security.
3. Document Integrity: The integrity of digitally signed documents can be compromised if vulnerabilities exist in the signing process or the cryptographic algorithms used. Any unauthorized alteration of the document can go undetected, undermining trust in the digital signature system.
4. Signature Forgery: Digital signature forgery is a significant risk, especially if verification mechanisms are not robust. An attacker could create a fake digital signature that is accepted as valid, which could have serious legal and financial consequences.
5. Insecure Storage: Keys stored on devices or systems with insufficient security measures are more susceptible to being stolen.
6. Unsecured Transmission: The transmission of keys through unsecured channels can be intercepted by attackers.
7. Technical Vulnerabilities: Technical vulnerabilities in the software and hardware used for digital signatures can be exploited by attackers to compromise system security. This includes flaws in cryptographic algorithms, implementation errors, and weaknesses in communication protocols.
8. Management from Multiple Locations: The need to use certificates from different locations can complicate their safekeeping and increase the risk of loss or duplication.
9. Device Migration: When changing devices, it’s easy to forget to delete previous copies of certificates, increasing the risk of unauthorized use.
10. Certificate Location and Management: Locating and managing specific certificates within a large inventory can become complicated without proper digital asset management tools.
11. Monitoring and Auditing: Tracking the use and activities associated with each certificate can require costly auditing and monitoring systems.
12. Scalability and Certificate Lifecycle: The issuance, renewal, and revocation of certificates must be properly managed to ensure security and avoid service interruptions.

Your Digital Certificate ecosystem, under control with nebulaCERT

The Solution: Centralized Certificate Management

Centralized certificate management solutions like nebulaCERT offer a range of guarantees that ensure compliance with current legal regulations and provide tools for the proper storage of digital certificates. Advantages include:

• • Due diligence in the custody and management of certificates: Ensures controlled and legitimate use of certificates
  • Automatic updates: Management in accordance with delegated regulations, avoiding the need to monitor regulatory changes
  • Minimized risk: Avoid installing certificates on local devices, where control is lost.
  • Express authorizations: Allows you to establish authorizations for the use of the certificate, proactively controlling its purpose.
  • Advance notifications: Prevent certificate expiration by sending notifications prior to the expiration date.
  • Remote access: Greater flexibility in using certificates from any location and device
  • Evidence of use: Record the date, time, and location of use, as well as the applications involved.
  • Security management policies: Increase the level of security through continuous audits

In short, a centralized digital certificate management solution is the best ally for organizations, allowing for effective, secure, and compliant use, guaranteeing trust in electronic transactions and protecting sensitive information.